US4676444A - Webbing driving apparatus - Google Patents

Webbing driving apparatus Download PDF

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Publication number
US4676444A
US4676444A US06/844,935 US84493586A US4676444A US 4676444 A US4676444 A US 4676444A US 84493586 A US84493586 A US 84493586A US 4676444 A US4676444 A US 4676444A
Authority
US
United States
Prior art keywords
drum
guide member
webbing
line means
driving apparatus
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
US06/844,935
Other languages
English (en)
Inventor
Yuji Nishimura
Takashi Kawaharazaki
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
TOKAI-RIKA-DENKI-SEISAKUSHO A CORP OF JAPAN KK
Tokai Rika Co Ltd
Original Assignee
Tokai Rika Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Tokai Rika Co Ltd filed Critical Tokai Rika Co Ltd
Assigned to KABUSHIKI KAISHA TOKAI-RIKA-DENKI-SEISAKUSHO, A CORP OF JAPAN reassignment KABUSHIKI KAISHA TOKAI-RIKA-DENKI-SEISAKUSHO, A CORP OF JAPAN ASSIGNMENT OF ASSIGNORS INTEREST. Assignors: KAWAHARAZAKI, TAKASHI, NISHIMURA, YUJI
Application granted granted Critical
Publication of US4676444A publication Critical patent/US4676444A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
    • B60R22/00—Safety belts or body harnesses in vehicles
    • B60R22/04—Passive restraint systems, i.e. systems both applied and removed automatically, e.g. by movement of the vehicle door
    • B60R22/06—Passive restraint systems, i.e. systems both applied and removed automatically, e.g. by movement of the vehicle door having the belt or harness connected to a member slidable in a vehicle-mounted track

Definitions

  • the present invention provides a webbing driving apparatus for use in a seatbelt system so designed that a part of an occupant restraining webbing is driven by the force derived from movement of a line means, thereby enabling the webbing to be automatically fastened to the body of an occupant
  • the apparatus comprising: a rotary drum for winding up the line means thereon; a guide member rotatable together with the rotary drum and movable in the axial direction of the rotary drum, the guide member being adapted to retain one end of the line means and guide the line means so as to be wound on the outer periphery of the rotary drum; and guide means for moving the guide member in the axial direction of the rotary drum in accordance with the amount by which the line means is wound on the drum.
  • FIG. 1 is an exploded perspective view of one embodiment of the webbing driving apparatus according to the present invention
  • the webbing driving apparatus 44 is arranged such that the wire 42 is axially moved by the driving force derived from a motor 46, thereby applying either a compressive or pulling force to the wire 42, and thus moving the anchor plate 30 toward either the front or rear end of the vehicle.
  • the anchor plate 30 Before the occupant 20 enters the vehicle, the anchor plate 30 is positioned at the forward end of the guide rail body 34. In this state, the motor 46 is not activated.
  • the guide member 70 In the webbing driving apparatus 44, the guide member 70 is at rest at a position where the boss 76 almost comes in contact with the disk 78, as shown in FIG. 4.
  • the wire 42 a portion thereof which extends between the wireguide portion 67 and the point 42A (see FIG. 3 ) at which the wire 42 comes into contact with the inner drum 52 is supported by the guide member 70 so that said portion extends in a tangential direction which is substantially perpendicular to the axial direction of the inner drum 52.
  • the guide member 70 when the wire 42 is wound up, the guide member 70 is moved in the axial direction of the inner drum 52 in accordance with the amount by which the wire 42 is wound up on the drum 52, whereby the wound portion of the wire 42 is maintained in a closely wound state. There is therefore no risk of adjacent turns of the wire 42 colliding with each other.
  • the roll diameter of the wire 42 wound on the inner drum 52 is maintained at a constant value at all times, which enables the wire 42 to be wound up at a constant rate or speed.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Automotive Seat Belt Assembly (AREA)
  • Storing, Repeated Paying-Out, And Re-Storing Of Elongated Articles (AREA)
US06/844,935 1985-03-29 1986-03-27 Webbing driving apparatus Expired - Lifetime US4676444A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP1985046255U JPH0447000Y2 (th) 1985-03-29 1985-03-29
JP60-46255 1986-03-29

Publications (1)

Publication Number Publication Date
US4676444A true US4676444A (en) 1987-06-30

Family

ID=12742072

Family Applications (1)

Application Number Title Priority Date Filing Date
US06/844,935 Expired - Lifetime US4676444A (en) 1985-03-29 1986-03-27 Webbing driving apparatus

Country Status (2)

Country Link
US (1) US4676444A (th)
JP (1) JPH0447000Y2 (th)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6427935B1 (en) * 1999-01-19 2002-08-06 Takata Corporation Seat belt retractor
US6935590B2 (en) 2003-05-19 2005-08-30 Autoliv Asp, Inc. Sensor for a feedback control system
US7140571B2 (en) 2003-06-11 2006-11-28 Autoliv, Asp, Inc. Electric seat belt retractor system
US20060290131A1 (en) * 2005-06-27 2006-12-28 Takata Corporation Seat belt retractor and seat belt apparatus

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3016206A (en) * 1956-05-22 1962-01-09 Casco Products Corp Antenna
US3129715A (en) * 1961-08-15 1964-04-21 Finkel Outdoor Prod Motor driven winding mechanism
US3728906A (en) * 1970-12-07 1973-04-24 Nippon Denso Co Electrically-operated extending and contracting antenna for running automobiles
US3961589A (en) * 1975-07-11 1976-06-08 International Telephone And Telegraph Corporation Buoyant cable antenna reeling system
US4181268A (en) * 1978-09-01 1980-01-01 General Motors Corporation Drive and storage drum for an antenna cable
US4236162A (en) * 1979-06-11 1980-11-25 General Motors Corporation Antenna actuator with a locating and reaction support surface for the cable storage drum
US4436250A (en) * 1980-08-20 1984-03-13 Metallwerk Max Brose Gmbh & Co. Drive unit for a transport cable

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3016206A (en) * 1956-05-22 1962-01-09 Casco Products Corp Antenna
US3129715A (en) * 1961-08-15 1964-04-21 Finkel Outdoor Prod Motor driven winding mechanism
US3728906A (en) * 1970-12-07 1973-04-24 Nippon Denso Co Electrically-operated extending and contracting antenna for running automobiles
US3961589A (en) * 1975-07-11 1976-06-08 International Telephone And Telegraph Corporation Buoyant cable antenna reeling system
US4181268A (en) * 1978-09-01 1980-01-01 General Motors Corporation Drive and storage drum for an antenna cable
US4236162A (en) * 1979-06-11 1980-11-25 General Motors Corporation Antenna actuator with a locating and reaction support surface for the cable storage drum
US4436250A (en) * 1980-08-20 1984-03-13 Metallwerk Max Brose Gmbh & Co. Drive unit for a transport cable

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6427935B1 (en) * 1999-01-19 2002-08-06 Takata Corporation Seat belt retractor
US6935590B2 (en) 2003-05-19 2005-08-30 Autoliv Asp, Inc. Sensor for a feedback control system
US7140571B2 (en) 2003-06-11 2006-11-28 Autoliv, Asp, Inc. Electric seat belt retractor system
US20060290131A1 (en) * 2005-06-27 2006-12-28 Takata Corporation Seat belt retractor and seat belt apparatus
US7516808B2 (en) * 2005-06-27 2009-04-14 Takata Corporation Seat belt retractor and seat belt apparatus

Also Published As

Publication number Publication date
JPS61161154U (th) 1986-10-06
JPH0447000Y2 (th) 1992-11-06

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